Cognomen Munjun (Munjun 
) , across the world, is a very rare surname. The cognomen Munjun is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. More frequently, Munjun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Munjun | United States, Malaysia, India, Thailand |